What to Drink When Fasting: Dr. Berg Guide

Beverages are fine during fasting, but certain drinks will kick you out of ketosis. Find out which ones.

Check out Dr. Berg's Electrolyte Powder (Raspberry and Lemon Flavor):

Sports Hydration Electrolytes:

Recommended Water Filters:

0:00 Introduction: What to drink while fasting
0:10 Can you drink water while fasting?
2:28 Carbonated water
4:18 What can you add to your water?
5:08 The importance of sea salt
6:35 Drinks with stevia
7:10 Coffee while fasting
7:54 Tea while fasting
8:19 Coconut water and other beverages while fasting
10:35 Discover what to eat when you end a long fast!

In this video, we’re going to talk about what to drink while fasting.

Water won’t kick you out of ketosis, but water quality varies greatly. Tap water is generally pretty toxic, and plastic water bottles contain microplastics. Glass water bottles are a better option, but they can be costly. Canned water often contains BPA.

Unless you have access to a well or spring water, a water filter is best. Crystal Quest water filters are cost-efficient and work well.

Some people find that they feel more hydrated after drinking carbonated water. Carbonated water contains carbon dioxide, which helps drive oxygen into your tissues. Carbonated water is also slightly more acidic, which may be helpful for digestion.

You can add apple cider vinegar to your water to increase energy, help with insulin resistance, improve mitochondrial function, and help improve a fatty liver.

While fasting, you can also add electrolyte powder or sea salt to your water. If you’re doing one meal a day, it's especially important you’re getting enough salt.

Stevia is fine on keto, but oftentimes, you’ll see maltodextrin added to stevia-sweetened beverages. Keto-friendly sweeteners that will not kick you out of ketosis include erythritol, monk fruit, and stevia.

You can drink coffee without sugar while fasting—just be careful not to overdo it with caffeine.
Try using heavy cream for your coffee rather than half-and-half. Bulletproof coffee involves adding coconut oil, MCT oil, or butter to your coffee. For some people, this can hinder weight loss.

Tea is also fine while fasting. Coffee and tea can sometimes deplete vitamin B1. If this happens to you, simply supplement vitamin B1 and decrease your consumption of coffee and tea.

Most people can not consume coconut water while fasting due to its sugar content. Alcohol kicks you out of ketosis and autophagy. Kombucha is okay in small amounts, but don’t consume too much because it is high in sugar.

Shakes or smoothies are fine on keto but can inhibit fasting because of the calories. Smoothies are better consumed closer to a meal, not while you’re fasting.

Dr. Eric Berg DC Bio:
Dr. Berg, age 58, is a chiropractor who specializes in Healthy Ketosis and intermittent fasting. He is the author of the best-selling book The Healthy Keto Plan, and is the Director of Dr. Berg Nutritionals®. He no longer practices, but focuses on health education through social media.

Follow Me On Social Media:




Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients so he can focus on educating people as a full-time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, prescription, or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

#keto #ketodiet #weightloss #ketolifestyle

Thanks for watching! I hope this explains which beverages you can have while fasting. I’ll see you in the next video.

Dave McKinnon

  • @tbrunswick7789 says:

    Thank you for another great video Dr Berg!

  • @Roadpizza says:

    Filter water at home. Also use a shower filter and that was an amazing change.

  • @C.N.1 says:

    Before replenishing my electrolytes after one heck of a workout and losing about 6 pounds of sweat right before my physical yesterday, my height was ½ an inch or so shorter! What was so interesting was that even after being followed by a PRETTY security guard woman, my B/P was 105 over 56, and my heart rate was only 56! 🎉 Thought it would be off the charts! 😊 I truly appreciate you, Dr. Berg for teaching us Healthy Keto! Have a wonderful day, everyone!

  • @AlphaMikeFoxtrot5150 says:

    Brilliant timing doc, 20 hours into a 72-hour fast.

  • @a.williams45 says:

    This is wonderful to know, Dr Berg. I myself found out that drinking carbonated water was more refreshing and comforting before knowing this from you. Precisely diluted raw organic ACV, squeezed fresh lemon juice and a tiny bit of pink himalayan salt was the only thing that kept me going and helped me recover quickly from dysautonomia due to long covid since I barely could eat, which knocked off the bit stubborn belly fat I had, alongside taking other supplements recommended from your videos. Carbonated water is my everyday favourite drink now. Thank you so much for your daily educational content and helpful advice to improve our health 🙏🏻💕

  • @danielmclaughlin2145 says:

    I have lemon water if I want to push my fast further and get gut issues. Charcoal and oregano oil as well to assist as I get gut infections constantly. Can’t tolerate ACV. This works for me.

    That co2 water theory sounds awesome 🙂

  • @gammelagam says:

    I ended my total 86 hour fast. Started with 50 hour water only and ended with 36 hour dry fast.

  • @MarieWilliams07369 says:

    Amazing information, Dr Berg! I also enjoy drinking my carbonated water on a daily basis, with diluted raw organic ACV and squeezed lemon juice first thing in the morning, it’s so refreshing. Thank you so much for all your time dedicated to provide relevant content. Cheers from the UK💕 🌞

  • @me734 says:

    Most days of the week, I 24hr fast, following the Paleo routine, drinking an entire “Zero Gravity Water Pitcher” each day, poured into a glass pitcher, 6oz Lemon Juice, 1tbsp organic Acerola powder, 1/2tsp Potassium, splash of grape juice concentrate. Filters are a tad expensive, but they usually last for 2-6 months, so it’s worth it. They send along a cool little digital tester so you know when it’s time for a cartridge change.

  • @techsir8866 says:

    Start with Dr Berg has been a huge support and is the reason I started getting my health back.

    Only one thought and/or constructive criticism piece for this. Going back and forth from different diets has made me realize that it is very hard to retain salt/sodium when not eating carbohydrates. When doing keto I could never get enough water and salt. But when eating a small amount of sugars, staying hydrated was no deal.

    Hope this helps, peace out and have a great day.

  • @lolitaguittapbelen9456 says:

    Prolong Fasting makes my throat dry..so I used to drink a little mixed cool Coconut Water + cool Mineral Water to overcome my Throat dryness as well as to Cleanse my Organ.. Thanx Doc Berg 😊👍

  • @BainsPummy says:

    Good morning Dr Berg, I drink sparkling water all day long but in a morning I drink sparkling water with Ginger, Turmeric, Lemon, Lime, ACV and Himalayan Sea Salt. Thank you Sir.

  • @shantavanee says:

    The most I’ve done was 3 day water fast and I did green tea and white tea and carbonated and non carbonated water with sea salt or electrolyte powder but I normally make my own electrolyte drink. Sparkling water does Help you feel fuller longer💯

  • @pamelagarcia1987 says:

    I use a Zero water filter, we got yet another notice from our water company that now it is excess manganese that we should be concerned about pouring from our tap along with all of the other chemical delights. I started following you last year, became determined to finally do something about my weight problem. It took awhile, but I’m nearly at my new goal weight. I’m 65 years old and in less than a year I’ve lost 60 pounds and now weigh less than I did when I was in the USMC in 1978. Thanks for your guidance and common sense advice, I look and feel great.

  • @RobCLynch says:

    I drink 3 large cups of coffee each morning while I’m fasting… although some people would argue that I’m not really fasting. However, I managed to lose 103 pounds of body weight drinking 1 cup of tea and 3 cups of coffee with heavy cream each morning. I think that people should work out what works for them and tinker with it.

    • @zippitydoodah5693 says:

      People do not ” _argue_ ” that you are, ” _not really fasting_ “. They simply make that observation of truth. There is no argument to be made. I am really glad your extreme liquid KETO diet helped you lose weight and get healthier. Sincerely.
      But *calling* it ” _fasting_ “, does not make it so. It never will. Words have meanings for a reason.

  • @blinkquokka says:

    0:00: 💧 Discussion on the best type of water to drink while fasting and its potential impact on the body.
    2:22: 💧 Carbonated water may be more hydrating due to increased oxygen absorption and potential benefits on digestion.
    4:14: ⚡ Drinking water with added electrolytes and salt can have various health benefits, including improving insulin sensitivity and reducing stress.
    6:30: ☕ Discussion on fasting-friendly drinks and their impact on weight loss and sleep.
    8:39: 🥤 Tips on fasting-friendly drinks and their effects.
    Recapped using Tammy AI

  • @timmullen8951 says:

    Thank you, Dr. Berg. I’ve had a habit of going on a weekly partial fast for years. Your acceptable liquids suggestions & ideas about water filtering are much appreciated.

    Be Well.

  • @marystinson7 says:

    I started fasting 3 years ago for spiritual reasons after the first year I started realizing fasting helps us physically too, I’m sure now that’s one of the Lord’s reasons for fasting 🙏🏼🙌🏼👑✝️🙌🏼🙏🏼

  • @libartstech says:

    I drink 2-3 cups of black coffee in the morning. When I was starting with intermittent fasting, I found it helpful to add cream to my final cup of coffee if I was really to try to push my first meal back. Now it’s not a problem. Other than that, I almost always drink water that I carbonate at home.

  • @tammyd967 says:

    I use a Berky as a water filter. Out tap water on Vancouver Island BC has so much chlorine in it. I want to get a filter as well for my shower. Notice a huge difference! I also use raw lemon and redmans pink salt

  • >